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Description
maxi cosi car seat 4-8 MAXI COSI Kani 4-In-1 Convertible Car SeatA four in one convertible car seat that accommodates children from birth through age ten, with an ultra slim profile for three across seating and auto magnetic chest clip for fast, secure buckling. Key Features Four Modes of Use: Rear facing infant seat (2. 318 kg 540 lbs), forward facing harness seat (1029. 5 kg 2265 lbs), high back belt positioning booster (1845 kg 40100 lbs), and backless booster (1845 kg 40100 lbs). Ultra Slim Design: Narrow
A four-in-one convertible car seat that accommodates children from birth through age ten, with an ultra-slim profile for three-across seating and auto-magnetic chest clip for fast, secure buckling.
Key Features
- Four Modes of Use: Rear-facing infant seat (2.3–18 kg / 5–40 lbs), forward-facing harness seat (10–29.5 kg / 22–65 lbs), high-back belt-positioning booster (18–45 kg / 40–100 lbs), and backless booster (18–45 kg / 40–100 lbs).
- Ultra-Slim Design: Narrow profile allows three car seats to fit side by side across the back seat in most vehicles without compromising safety or comfort.
- ClipQuick Auto-Magnetic Chest Clip: Magnetically guided buckle snaps into place for quick, frustration-free fastening — even with a squirming child.
- 10-Position Headrest with No-Rethread Harness: One-hand headrest lift automatically adjusts the harness straps to match your child's growth, eliminating the need to manually rethread.
- One-Click UAS Installation: Self-retracting UAS (LATCH) connectors simplify installation for a confident, secure fit in your vehicle.
- Machine-Washable EcoCare Fabrics: Seat cover made from 100% recycled plastic bottles is soft, breathable, machine washable, and dryer safe for easy care.
Specifications
| Brand | Maxi-Cosi |
| Product Type | Convertible Car Seat (4-in-1) |
| Rear-Facing Weight Range | 2.3–18 kg (5–40 lbs) |
| Forward-Facing Weight Range | 10–29.5 kg (22–65 lbs) |
| Belt-Positioning Booster Weight | 18–45 kg (40–100 lbs) |
| Backless Booster Weight | 18–45 kg (40–100 lbs) |
| Headrest Positions | 10 |
| Recline Positions | 5 |
| Installation | One-click UAS (LATCH) connectors |
| Harness | 5-point with no-rethread adjustment |
| Cup Holders | 2 removable, BPA-free, vegan leather wrapped |
| Fabric | EcoCare 100% recycled; machine washable & dryer safe |
| Safety | Meets or exceeds federal safety standards |
Frequently Asked Questions
How long can my child use the Maxi-Cosi Kani?
The Kani is designed to serve your child from birth through approximately 10 years of age, spanning four distinct modes. It starts as a rear-facing seat for infants and transitions all the way to a backless booster for children up to 45 kg (100 lbs).
Can the Kani fit three-across in my vehicle?
Yes. The Kani features an ultra-slim profile specifically engineered to allow three car seats across the back seat of most vehicles. Actual fit may vary depending on your vehicle's interior dimensions.
How do I convert the Kani to backless booster mode?
An intuitive one-hand release mechanism lets you detach the seat back in seconds, instantly converting the Kani into a lightweight backless booster without tools or complicated steps.
Warranty: Maxi-Cosi products are backed by a limited warranty. Please visit the Maxi-Cosi website or contact their customer support team for complete warranty terms, coverage details, and any registration requirements that may apply.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 4
Awesome, portable room divider for larger rooms
Color: Black, Color: Black
I chose this room divider to use in my son's room that also serves as my home office! It is 72" x 72" in size, so it truly blocks out the other side of the room for optimal privacy. Once it's assembled, it's mildly sturdy - as long as you can bet both ends with the "feet" in line with the ground. I wish that the framework poles had more of an interlocking system so that the divider was easier to erect. I assembled this on carpet, so I had some issues getting the divider to stop moving. It takes a lot of work to set up, as it is massive, so definitely have someone help you. I would suggest adding weights of some sort to the feet of this divider to keep it from shifting. I ended up leaning mine against a bookcase shelf so it wouldn't lean. All and all, this is a great product if you are looking to make a room multipurpose.
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Reviewed in the United States on August 2, 2025
★★★★★ 5
As described
Color: Black
Light weight, easy to put together and you can disconnect the ends and just roll the whole thing nice and tight for quick out of the way storage. Pretty sturdy, doesn't fall over if you bump into it, you could use it outside but if there's a lot of light you can see through a tiny bit if you're really close but I only tested this indoors so not sure about patio types
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Reviewed in the United States on December 18, 2025
★★★★★ 2
Flimsy - choose something else
Color: Black
Very flimsy and barely stands up… better options out there.
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Reviewed in the United States on October 11, 2025
★★★★★ 5
Favorite Socks Ever
Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted
I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!
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Reviewed in the United States on May 28, 2019
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
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Reviewed in the United States on December 2, 2018